Try Our Apps


The Best Internet Slang


[in-fi-dl, -del] /ˈɪn fɪ dl, -ˌdɛl/
  1. a person who does not accept a particular faith, especially Christianity.
  2. (in Christian use) an unbeliever, especially a Muslim.
  3. (in Muslim use) a person who does not accept the Islamic faith; kafir (def 2).
a person who has no religious faith; unbeliever.
(loosely) a person who disbelieves or doubts a particular theory, belief, creed, etc.; skeptic.
not accepting a particular faith, especially Christianity or Islam; heathen.
without religious faith.
due to or manifesting unbelief:
infidel ideas.
rejecting the Christian religion while accepting no other; not believing in the Bible or any Christian divine revelation.
Also, infidelic
[in-fi-del-ik] /ˌɪn fɪˈdɛl ɪk/ (Show IPA)
. of, relating to, or characteristic of unbelievers or infidels.
Origin of infidel
late Middle English
1425-75; late Middle English < Late Latin infidēlis “unbelieving,” Latin: “unfaithful, treacherous.” See in-3, feal
Synonym Study
1–3. See agnostic. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
Cite This Source
Examples from the Web for infidel
Contemporary Examples
Historical Examples
  • Already a Christian, could she hope for the success of the infidel?

    Leila, Complete Edward Bulwer-Lytton
  • His wife could not help the sudden thought, "But if we had had an infidel or agnostic son?"

    The Coryston Family Mrs. Humphry Ward
  • Let them boast of their Moorish gallantry and their infidel marriages—a fig for them!

    Gomez Arias Joaqun Telesforo de Trueba y Coso
  • It represented the triumph of the Papacy over the infidel of all dates.

  • She must have been a bad one like her brother, who was an infidel, they say, and did not know or fear God.

    The Book of Khalid Ameen Rihani
British Dictionary definitions for infidel


a person who has no religious belief; unbeliever
rejecting a specific religion, esp Christianity or Islam
of, characteristic of, or relating to unbelievers or unbelief
Word Origin
C15: from Medieval Latin infidēlis, from Latin (adj): unfaithful, from in-1 + fidēlis faithful; see feal
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
Word Origin and History for infidel

mid-15c. (adjective and noun), from Middle French infidèle, from Latin infidelis "unfaithful, not to be trusted," later "unbelieving," from in- "not, opposite of" (see in- (1)) + fidelis "faithful" (see fidelity). In 15c. "a non-Christian" (especially a Saracen); later "one who does not believe in religion" (1520s). Also used to translate Arabic qafir, which is from a root meaning "to disbelieve, to deny," strictly referring to all non-Muslims but virtually synonymous with "Christian;" hence, from a Muslim or Jewish point of view, "a Christian" (1530s; see kaffir).

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source

Word of the Day

Difficulty index for infidel

Some English speakers likely know this word

Word Value for infidel

Scrabble Words With Friends

Nearby words for infidel